Tresa Miller, 41, was pronounced dead at the site of the crash on Lt. J.G. Brender Highway, about a quarter-mile from the intersection with Stanton Corners Road. The crash was reported a few minutes after 8 a.m. Tuesday.

Police said they believe the crash and Miller's death may have been due to a medical condition. An autopsy was scheduled for Wednesday.

Police said Miller had worked an 11 p.m. to 7 a.m. shift at Catskill Regional Medical Center in Harris, where she worked as a registrar, and was heading home when she was stricken. Damage to her 1995 Ford Bronco, which hit a tree, was minor, they said.